SPECIAL PURPOSE MACHINE
Designed with state-of-art technology with automated features for the special application like current and voltage transformers, inductors, dry type transformers
AUTOMATIC PT COIL WINDING MACHINE | special purpose machines
PTW series Automatic PT COIL winding machines are designed and developed to wind
HV coils of HV Instrument Transformers.
This machine facilitates winding of more than one coil simultaneously on a single winding shaft
Servo controlled system enables to wind the conductor and insulation precisely with the high speed and required tension.
The progressive paper cutting unit enhances productivity due to reduced human intervention (paper cutting and pasting manually to coil is completely eliminated).
The closed loop automatic gluing mechanism ensures the sticking of insulation paper between the winding layers.
MACHINE DESIGN
The machine is assembled on a robotic welded steel structure to accommodate all components and controls.
A machine comprises the following components:
- Main Winding Head
- Traverse Unit
- Tailstock
- Winding Mandrel
- Gluing Mechanism
- Paper Feeding Unit
- Control Console
MAIN WINDING HEAD
Single Spindle side loading type with precision AC Servo motor continuously variable type through close loop system.
TRAVERSE UNIT
Low backlash high precision ball screw mounted on high precision guide ways to accommodate round conductor with programmable Tension control system.
TAILSTOCK
Pneumatically operated with close loop interlocking with mandrel.
WINDING MANDREL
Direct driven shaft with cone type arrangement to accommodate variable size of ID of LV coils.
GLUING MECHANISM
The gluing mechanism for stitching the interlayer insulation with pneumatic control and programmed for number and type of glues.
PAPER FEEDING UNIT
Automatically fed insulation paper with progressive cut mechanism and layer build up for every layer based on programmed parameters.
CONTROL CONSOLE
Programmable Logic controlled System with touch screen based operator interface.
SPECIFICATION
| Number of coils | 1 / 2 / 3 COILS |
| Coil Diameter | 70 mm (min), 250 mm (max) |
| Coil Weight With Mandrel | 100 Kgs (max) FOR 3 COILS |
| Centre Height | 950 mm |
| Spindle Motor | AC Servomotor |
| WINDING Speed | 1500 rpm (max) |
| TAIL STOCK Type | Pneumatically operated |
| Quill Stroke | 75 mm |
| Traverse Stroke Length | 250mm (max) |
| Traverse Motor & Drive | AC Servo Motor (Yaskawa Make) |
| Insulation paper thickness | 1.5 to 5 mil |
| Insulation paper width | 50 mm (min) to 200 mm (max) |
| Tension Range | 50 to 500 gms (based ON wire dia) |
| Wire size | 0.1 to 0.5 mm |
| Tensioner Type | Magnetic tensioner / Servo control |
| Controller | PLC Based Control System |
| Operator Interface | 10'' HMI |
| power REQUIREMENT | 415 V AC, 3 Ph, 50Hz , 11 KVA |